On Thu, Feb 23, 2012 at 05:56:42PM -0800, Geoff Joy wrote:
[...]
My first plan was to dedicate bits in the address plan for
geography/frequency and other factors but Brian talked me out of
making any plan more complex than it already was. He also informed me
of his reservation of the first 2 bits in the third octet for his use
in future, something I was unaware of when I assumed the post. This
made the CIDR mask 44.18.0.0/18 instead of the expected /16.
Yes, that was a time when we seemed to be growing subnets faster
than expected and it looked like the original scheme I inherited
was going to run out of space.
Nowadays I think we'll not need those two extra bits any time soon.
In retrospect I probably should have come up with a more equitable
scheme for non-USA countries, but we have had enough space to
allocate additional blocks when it became desireable to accomodate
larger subnetting schemes.
Conversely, there are some allocations which are larger than the
entire ham population of some countries. It's largely been a "seat
of the pants" approach and is notably suboptimal in several cases.
For that I apologize.
- Brian